//len为位数,date:true表示添加日期exportconstrandomLenNum=(len, date)=>{let random ='';
random = Math.ceil(Math.random()*100000000000000).toString().substr(0, len ? len :4);if(date) random = random + Date.now();return random;};
1.问题说明 1.根据创建时间排序,当创建时间大量重复时,分页查询会导致某条数据出现在不同分页中 select * from student order by create_time desc limit 10,10;
select * from student order by create_time desc limit 20,10;2.问题解决 1.如果有id主…